1987 30 yamaha, fuel pump is on middle cylinder. compression top and bottom, 125, middle 75. idles great, planes good. after running at WOT for maybe 15 seconds, starts to bog down, squeezing primer bulb fixes bogging for another 15 seconds. rebuilt carbs, fuel pump, new fuel tank, hoses.
question. could low compression on middle cylinder cause fuel pump to be weak (low vacuum ?) . gasket in fuel pump was torn when i rebuilt pump.
question. could low compression on middle cylinder cause fuel pump to be weak (low vacuum ?) . gasket in fuel pump was torn when i rebuilt pump.